Answer:
25.05 g of S₈
Explanation:
The balance chemical equation for given synthetic reaction is,
S₈ + 8 O₂ → 8 SO₂
Step 1: Calculate Moles of SO₂ at STP:
According to Avogadro's Law, at STP (0 ° C and 1 atm) every ideal gas occupies 22.4 L of volume. Therefore, the moles contained by 17.5 L of SO₂ are as;
Moles = 17.5 L / 22.4 L
Moles = 0.781 moles of SO₂
Step 2: Calculate Moles of S₈ consumed:
According to balance equation,
8 moles of SO₂ were produced by = 1 mole of S₈
So,
0.781 moles of SO₂ will be produced by = X moles of S₈
Solving for X,
X = 0.781 mol × 1 mol / 8 mol
X = 0.0976 moles of S₈
Step 3: Calculate Mass of S₈ as;
Mass = Moles × M.Mass
Mass = 0.0976 mol × 256.52 g/mol
Mass = 25.05 g of S₈
